<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
      <el-breadcrumb-item>添加商品</el-breadcrumb-item>
    </el-breadcrumb>
    <el-card>
      <el-alert
        title="添加商品信息"
        type="info"
        center
        :closable="false"
        show-icon
      >
      </el-alert>
      <el-steps
        :space="200"
        :active="activeIndex - 0"
        align-center
        finish-status="success"
      >
        <el-step title="基本信息"></el-step>
        <el-step title="商品参数"></el-step>
        <el-step title="商品属性"></el-step>
        <el-step title="商品图片"></el-step>
        <el-step title="商品内容"></el-step>
        <el-step title="完成"></el-step>
      </el-steps>
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="100px"
        label-position="top"
      >
        <el-tabs
          tab-position="left"
          v-model="activeIndex"
          :before-leave="beforeLeave"
          @tab-click="tabClicked"
        >
          <el-tab-pane label="基本信息" name="0">
            <el-form-item label="商品名称" prop="goods_name"
              ><el-input v-model="addForm.goods_name"></el-input
            ></el-form-item>
            <el-form-item label="商品价格" prop="goods_price"
              ><el-input type="number" v-model="addForm.goods_price"></el-input
            ></el-form-item>
            <el-form-item label="商品重量" prop="goods_weight"
              ><el-input type="number" v-model="addForm.goods_weight"></el-input
            ></el-form-item>
            <el-form-item label="商品数量" prop="goods_number"
              ><el-input type="number" v-model="addForm.goods_number"></el-input
            ></el-form-item>
            <el-form-item label="商品分类" prop="goods_cat">
              <el-cascader
                v-model="addForm.goods_cat"
                :options="catelist"
                :props="{
                  expandTrigger: 'hover',
                  value: 'cat_id',
                  label: 'cat_name',
                  children: 'children',
                }"
                @change="handleChange"
              ></el-cascader
            ></el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品参数" name="1">
            <el-form-item
              v-for="item in manyTableData"
              :key="item.attr_id"
              :label="item.attr_name"
            >
              <el-checkbox-group v-model="item.attr_vals">
                <el-checkbox
                  v-for="(item2, i) in item.attr_vals"
                  :key="i"
                  border
                  :label="item2"
                ></el-checkbox>
                <!-- 上面这一行不能加checked属性，会把item.attr_vals的值变成true -->
              </el-checkbox-group>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品属性" name="2"
            ><el-form-item
              :label="item.attr_name"
              v-for="item in onlyTableData"
              :key="item.attr_id"
              ><el-input v-model="item.attr_vals"></el-input></el-form-item
          ></el-tab-pane>
          <el-tab-pane label="商品图片" name="3">
            <el-upload
              :headers="headersObj"
              :on-success="handleSuccess"
              :action="uploadURL"
              :on-preview="handlePreview"
              :on-remove="handleRemove"
              list-type="picture"
            >
              <el-button size="small" type="primary">点击上传</el-button>
              <!-- <div slot="tip" class="el-upload__tip"> 暂时无用
                只能上传jpg/png文件，且不超过500kb
              </div> -->
            </el-upload>
            <!-- upload组件是不用axios发起网络请求的，重点！！！！ -->
            <el-dialog title="" :visible.sync="imgDialogVisible" width="70%">
              <img :src="imgPath" alt="" style="max-width: 100%" />
            </el-dialog>
          </el-tab-pane>
          <el-tab-pane label="商品内容" name="4">
            <quill-editor
              ref="myQuillEditor"
              v-model="addForm.goods_introduce"
              
            />
            <el-button style='margin-top:15px' @click='add' type='primary'>添加商品</el-button>
          </el-tab-pane>
        </el-tabs>
      </el-form>
    </el-card>
  </div>
</template>

<script>
import _ from 'lodash'
export default {
  data() {
    return {
      imgDialogVisible: false,
      imgPath: '',
      catelist: [],
      addForm: {
        goods_name: '',
        goods_price: 0,
        goods_weight: 0,
        goods_number: 0,
        goods_cat: [],
        goods_introduce:'',
        pics: [],
        attrs:[]
      },
      headersObj: {
        Authorization: window.sessionStorage.getItem('token'),
      },
      uploadURL: 'http://localhost:8888/api/private/v1/upload/', //上传图片的地址
      addFormRules: {
        goods_name: [
          { required: true, message: '请输入商品名称', trigger: 'blur' },
        ],
        goods_price: [
          { required: true, message: '请输入商品价格', trigger: 'blur' },
        ],
        goods_weight: [
          { required: true, message: '请输入商品重量', trigger: 'blur' },
        ],
        goods_number: [
          { required: true, message: '请输入商品数量', trigger: 'blur' },
        ],
        goods_cat: [
          { required: true, message: '请选择商品分类', trigger: 'blur' },
        ],
      },
      activeIndex: '0',
      manyTableData: [],
      onlyTableData: [],
    }
  },
  created() {
    this.getCategories()
  },
  methods: {
    async getCategories() {
      const { data: res } = await this.$http.get('categories')
      if (res.meta.status !== 200)
        return this.$message.error('分类信息获取失败')
      this.$message.success('分类信息获取成功')
      this.catelist = res.data
    },
    handleChange() {
      console.log(this.addForm.goods_cat)
      if (this.addForm.goods_cat.length !== 3) {
        this.addForm.goods_cat = []
      }
    },
    beforeLeave(acName, oldName) {
      if (oldName === '0' && this.addForm.goods_cat.length !== 3) {
        this.$message.error('没有选商品分类不能离开')
        return false
      }
    },
    async tabClicked() {
      if (this.activeIndex === '1') {
        const { data: res } = await this.$http.get(
          `categories/${this.cateId}/attributes`,
          { params: { sel: 'many' } }
        )
        if (res.meta.status !== 200)
          return this.$message.error('商品参数获取失败')
        this.$message.success('参数获取成功')
        res.data.forEach((item) => {
          item.attr_vals =
            item.attr_vals.length === 0 ? [] : item.attr_vals.split(',')
        })
        this.manyTableData = res.data
        console.log(this.manyTableData)
      }
      if (this.activeIndex === '2') {
        const { data: res } = await this.$http.get(
          `categories/${this.cateId}/attributes`,
          { params: { sel: 'only' } }
        )
        if (res.meta.status !== 200)
          return this.$message.error('商品属性获取失败')
        this.$message.success('属性获取成功')
        this.onlyTableData = res.data
        console.log(this.onlyTableData)
      }
    },
    handlePreview(file) {
      //图片预览
      this.imgDialogVisible = true
      this.imgPath = file.response.data.url
    },
    handleRemove(file) {
      //图片移除
      const filePath = file.response.data.tmp_path
      const i = this.addForm.pics.findIndex((x) => {
        x.pic === filePath
      })
      this.addForm.pics.splice(i, 1)
      console.log(this.addForm)
    },
    handleSuccess(response) {
      // console.log(response);
      this.addForm.pics.push({ pic: response.data.tmp_path})
      console.log(this.addForm)
    },
    add(){
      // console.log(this.addForm.goods_introduce);
      this.$refs.addFormRef.validate(async valid=>{
        if(!valid) return this.$message.error('内容填写不全')
        
         const form = _.cloneDeep(this.addForm) //form是对象 ,lodash是让原有对象中的键改变属性
         form.goods_cat= form.goods_cat.join(',')
         this.manyTableData.forEach(item=>{
           form.attrs.push({'attr_id':item.attr_id,'attr_value': item.attr_vals.join(',')})
         })
         this.onlyTableData.forEach(item=>{
           form.attrs.push({'attr_id':item.attr_id,'attr_value': item.attr_vals})
         })
         console.log(form);
        const{data:res}=await this.$http.post('goods',form)
        if(res.meta.status!==201) return this.$message.error('商品提交失败')
         this.$message.success('提交商品成功')
         this.$router.push('goods')

         
      })
    }
  },
  computed: {
    cateId() {
      if (this.addForm.goods_cat.length === 3) {
        return this.addForm.goods_cat[2]
      }
      return null
    },
  },
}
</script>

<style scopted>
.el-steps {
  margin: 15px 0;
}
.el-step__title {
  font-size: 13px !important;
}
.el-cascader {
  width: 200px;
}
.el-checkbox-item {
  margin: 0 !important;
}

</style>